<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>
    /* 顶部导航 */
    .nav{
        width:100%;
        height: 30px;
        border-radius: 15px;
        font-size: 20px;
        color: #505050;
        background-image: url(../jpg/搜索.png);
        background-repeat: no-repeat;
        background-position: 10px;
    }
    /* 上导航 */
    .subnav{
       display: flex;
       justify-content: space-around;
       font-size: 20px;
       color: #505050;
    }
    .picture{
        height: 200px;
        width: 100%;
    }
     /* 今日热门 */
    .hot{
        height: 140px;
        width: 100%;
        border-bottom:4px solid #f2f4f8;
    }
    .logo{
        display: flex;
        margin-top: 10px;
    }
    .logo>img{
        height: 40px;
        margin-top: -5px;
    }
    .logo>span{
        font-size: 30px;
        margin-top: 1px;
        margin-left: 10px;
        color: #505050;
    }
    .content{
        line-height: 35px;
        color: #505050;
        font-size: 22px;
        margin-top: 15px;
    }
    /* 专栏1 */
    .columns1{
        height: 120px;
        width: 100%;
        display: flex;
        margin-top: 15px;
        border-bottom:2px solid #f2f4f8;
    }
    .columns1>img{
        height: 110px;
        width: 100px;
    }
    .text1{
        font-size: 21px;
        color: #505050;
        font-weight: 1000;
        line-height: 30px;
    }
    .text2{
        font-size: 14px;
        color: #bbbbbb;
        margin-top: 50px;
        line-height: 20px;
    }
    /* 专栏2 */
    .columns2{
        height: 90px;
        width: 100%;
        display: flex;
        margin-top: 15px;
    }
    .text3{
        font-size: 21px;
        color: #505050;
        font-weight: 1000;
        line-height: 30px;
    }
    .columns2>img{
        height: 70px;
        width: 100px;
    }
    /* 底部导航 */
    .bottomnav{
        height:5px;
        width: 100%; 
        background-color: #f8f8f8;
        display: flex;
        flex-wrap: wrap;
        justify-content:flex-start;
        margin-top: -15px;
    }
    .logo1{
        height: 50px;
        width: 50px;
        margin-top: 20px;
        margin-left: 25px;
    }
    .container{
        height: 20px;
        color: #505050;
        font-size:20px;
        text-align:center;
        margin-left: 28px;
        margin-top: 5px;
    }
   
</style>
<body>
    <!-- 顶部导航 -->
    <input class="nav" type="text" placeholder="      网易云课堂">
    <!-- 上导航 -->
    <div>
        <dl class="subnav">
            <dt>个性推荐</dt>
            <dt>课程</dt>
            <dt>微创业</dt>
        </dl>
        <img class="picture" src="../jpg/图1.jpg" >
        <!-- 今日热门 -->
        <div class="hot">
            <div class="logo">
                <img  src="../jpg/热点.png">
                <span>今日热门</span>
            </div>
            <ul class="content">
                <li>互联网是怎么跟广告业抢饭吃的</li>
                <li>中国哪个姓氏最厉害</li>
            </ul>
        </div>
     
        <!-- 专栏 -->
        <div class="columns1">
            <div>
                <span class="text1">人家设计这个才叫loading，你设计的那个顶多叫菊花</span><br>
                <span class="text2">等待界面的设计最初的时候并不走心，现在已经花样百出，本文带你一起看看。</span>
            </div>
            <img  src="../jpg/加载中.jpg" >
        </div>
        <div class="columns2">
            <div>
                <span class="text3">一套独特风格的ios UI模板，PSD源文件免费分享</span>
            </div>
            <img src="../jpg/手机.jpg" >
        </div>

        <!-- 底部导航 -->
        <div  class="bottomnav">
            <div>
                <img class="logo1" src="../jpg/首页.png" >
                <p class="container">首页</p>
            </div>
            <div>
                <img class="logo1"  src="../jpg/分类.png" >
                <p class="container">分类</p>
            </div>
            <div>
                <img class="logo1" src="../jpg/我的学习.png" >
                <p class="container">我的学习</p>
            </div>
            <div>
                <img class="logo1" src="../jpg/账号.png" >
                <p class="container">账号</p>
            </div>
           
        </div>
    </div>
 

</body>
</html>